Square to Round Adapter With 1 in FlangeSquare to Round Adapter With 1 in Flange, 12 x 12 to 9 inDescriptionECCO Manufacturing™ Square to Round Adapter With 1 in Flange, 12 x 12 to 9 in Fitting, Square to Round Shape, Galvanized, 12 in Diameter, 12-1/4 in Length, 9-1/4 in Width, 26 ga Gauge
ECCO Manufacturing, Square to Round Adapter, 563063, 12 x 12 to 9in